A 17-day-old newborn needs about 50 to 60 milliliters of milk per feeding, and the number of feedings per day is about 7 to 8, which can be adjusted according to the newborn’s needs for on-demand feeding. Breastfeeding for 17-day-old newborns emphasizes on-demand feeding, and this amount and frequency of feeding is not fixed. Routine breastfeeding amount is generally 2 ~ 3 hours to feed 1 time, each time to feed 50 ~ 60 ml or so, a day of breastfeeding about 7 ~ 8 times, and then slowly increase the amount of feeding, the specific frequency and amount of feeding needs to be based on the newborn’s individual digestive ability to decide. Most infants and young children have milk overflow phenomenon after eating milk, the baby should not be in a hurry after eating milk flat, need to hold up vertical burping, to avoid frequent spitting up caused by suffocation.